Abstract
Recent studies of spiral counterflow "Swiss-roll" heat-recirculating reactors have demonstrated the importance of streamwise heat conduction on their performance. Titanium-811 Swiss rolls having a thermal conductivity (k) of 6 W/m-K, geometrically similar to inconel-718 reactor (k ≈ 11.4 W/m-K), were constructed to test this hypothesis using propane-air mixtures with speciallyprepared Pt catalyst. Three different wall thicknesses were studied. As suggested by theoretical studies, better performance was found for low-k, thin-walled reactors. Under these conditions, self-sustaining chemical reaction could be maintained at maximum temperatures below 55 °C with ignition temperatures below 90 °C. These results may be useful for development of micropower generation devices employing thermoelectrics or solid-oxide fuel cells.
Original language | English (US) |
---|---|
Title of host publication | 5th US Combustion Meeting 2007 |
Publisher | Combustion Institute |
Pages | 3278-3284 |
Number of pages | 7 |
Volume | 6 |
ISBN (Print) | 9781604238112 |
State | Published - 2007 |
Event | 5th US Combustion Meeting 2007 - San Diego, United States Duration: Mar 25 2007 → Mar 28 2007 |
Other
Other | 5th US Combustion Meeting 2007 |
---|---|
Country | United States |
City | San Diego |
Period | 3/25/07 → 3/28/07 |
ASJC Scopus subject areas
- Chemical Engineering(all)
- Physical and Theoretical Chemistry
- Mechanical Engineering